- Exposure: RGB 12x300:12x130:12x220
seconds
- RGB Combine Ratios: 1.0:1.0:1.0
- Telescope: Stellarvue
SV80S @ f/4.75
- Mount: Meade
LX200 w/ super
wedge
- Camera: SBIG ST-2000XM CCD, SBIG CFW-8
- Location: My backyard in Goleta, CA
- Date/Time: September 4 2004, 01:42-04:09 PDT
- Processing: Taken in CCDSoft v5 using custom
sequence/dithering software.
Combined
sub-exposures
with Ray Gralak's Sigma Clip. Color
combined with custom software. Curves/levels/saturation adjusted in
Photoshop CS.
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- Name: The Double Cluster, NGC869, NGC884
- Type: Open Cluster
- Constellation: Perseus
- Distance: ~7000 light years
- Two physical groupings of stars that also are in relatively
close proximity to each other. This is a beautiful sight in
binoculars or a wide field telescope. More
about The Double Cluster.
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